Ventilator.



I J. G. FRANCE.

VENTILATOR. APPLICATION FILED IIIAR.,19 1912.

Patented Aug. 12, 1913.

2 SHEETSSHEET 1 J. G. FRANCE.v

VENTILATOR.

APPLICATION FILED MAR. 19, 1912.

Patented Aug. 12, 1913.

Z SHEETS-SHEET 2.

Slum/Mo;

UNITED STATES 'PATEN T OFFICE.

ason rBAnoE, or SYRACUSE, NEW YORK.

vEn'rIL ron.

To all whom, it may concern Be it known that I, Jason G. FRANCE, a citizen of the United States, residing at Syracuse, in the county of Onondaga and State of New York, have invented new and useful Improvements in Ventilators, of which the following is a specification.

This invention relates more particularly to that class of ventilators which are adapted to be detachably fixed to window frames or casements and the general object of the invention is to provide a ventilator which is simple in construction and which Wlll give a perfect circulation of fresh air at all times without exposing occupants of a room to drafts or inclement weather and also to prevent ingress of insects into the room when the ventilator is in use.

The invention is still further adapted to permit of the escape of impure air and smoke into the outer atmosphere.

In carrying out the objects of the invention generally stated above it will be understood, of course, that the essential features thereof are necessarily susceptible to changes in details and structural arrangements, one preferred and practical embodiment being shown in the accompanying drawings, wherein Figure 1 is a fragmentary view of a window frame looking from the outside, and showing the ventilator applied thereto and constructed in accordance with the invention. Fig. 2 is a vertical sectional view on the line 2-2 of Fig. 1. Fig. 3 is an enlarged detail view in elevation of the outside of the ventilator. Fig. 4 is a similar view of the inside of the ventilator. Fig. 5 is a sectional view on the line 5-5 of Fig. 3.

Referring more particularly to the accompanying drawings it will be seen that the ventilator which will be hereinafter more fully described, is applied to a window frame 10 of any ordinary construction, said window frame having its vertical stiles provided with guide strips 11 and 12, the said guide strips 12 being of a greater width than the guide strips 11 for a purpose which will be hereinafter more fully set forth. These guide strips 11 and 12 form guideways 13 and 14 which are adapted to receive an upper sash 15 and a lower sash 16 respectively. Hingedly connected to one of the vertical stiles of the window frame 10 Specification of Letters Patent.

Application filed March 19, 1912.

Patented Aug. 12,1913. Serial No. 684,658.

adjacent the outer edges thereof, is a screen door 17 which is adapted to'close the major part of the lower portion of said frame.

The screen door is provided with a suitable locking means (not shown) which is adapted to engage the other vertical stile of the window frame 10 in order to retain the said screen door in a closing position. When in its closing position the screen is adapted to. abut against the guide strips 12 .and owing to the width of these strips a considerable space is left between the said door and the upper sash 15 for the ingress of fresh air into a room.

The increased air space provided by the added width of the guide strip 12 is important in that it provides a comparatively large space for the proper circulation of the air beyond the upper sash when said sash is lowered while at the same time providing sufficient space for the use of the proper size deflector and the arranging of the same at proper inclination. With the usual narrow Space. provided in structures of this character the current of air striking directly against the ventilator would ordinarily be deflected back into the room, the construction acting in this respect along lines which may be compared to a restricted flue and one of substantial size.

The ventilator proper comprises a frame 18 which is preferably rectangular in shape and which is provided with a similarly shaped opening 19 in which a pane of glass 20 is secured. The ventilator is adapted to be secured in the upper portion of the frame 10 above the screen door 17 and substantially in alinement therewith, thus giving the ventilator the general appearance of a transom. The frame 18 is secured to the window frame 10 by means of the fastening eyes and screws as indicated at 21. The upper horizontal portion of the frame 18 is provided with a plurality of circular transverse openings 22 which are adapted to receive the shanks 23 of the air funnels 24. In order to prevent insects from getting into the room from the openings 22, the latter are covered by an elongated strip of wire netting 25 which is secured to the inside of the frame 18. Impure air is guided into the air funnels 24 by means of an inclined, overhanging deflector plate 26 which extends longitudinally of the upper portion of the frame 18 and is secured thereto by means of a plurality of fasteners 27 which are adapted to engage lateral eX- tensions 28 formed at the edges of the deflector plate 26.

When it is desired to ventilate a room the upper sash 15 is lowered and the downward movement thereof is limited by means of the buffers 29 which are secured in the guideway 13 of the window frame 10. The open position of the window sash 15 permits the impure or headed air within the room to rise to the top of the window frame and pass under the deflector plate 26 and out through the air funnels 24 into the outer atmosphere. Fresh air will pass through the screen door 17 and thence through the space formed between the ventilator frame 18 and the upper sash 15 and thus be permitted to freely circulate into the room. When there is suflicient atmospheric pressure from the outside, the air funnels 24: will also tend to collect fresh air and distribute the same into the room after passing under the deflector plate 26.

When it is desired to apply the invention to a casement where no sashes are used, said ventilator may be provided with one series of outwardly extending air funnels and a second series of inwardly extending funnels, the first mentioned funnels being adapted to permit the ingress of fresh air into the room while the second series of funnels is adapted to permit the escape of impure air into the outer atmosphere.

From the foregoing description it will be obvious that a ventilator has been provided which is effective and positive in its operation and which can be readily applied to any window frame without marring the general appearance thereof.

Having thus described my invention, what I claim as new is The combination with a window frame having an outer guide strip of greater width than the intermediate guide strip, and upper and lower sashes slidably mounted therein; of a ventilator including a frame secured to the outer edge of the outer guide strip, the width of said guide strip forming space between the ventilator and said upper sash exceeding the space between the sashes, a plurality of air funnels extending outwardly from said ventilator and having their inner ends mounted interiorly of said frame to provide air passages therethrough, a wire netting extending across the inner ends of said air passages and secured to said ventilater frame, and an inclined deflector plate secured to the inner side of said ventilator frame and adapted to overhang the inner end of said air passages.

In testimony whereof I ailiX my signature in presence of two witnesses.

JASON Gr. FRANCE.

"Witnesses:

HENRY Lnsrna PASSAGE, JAMES R. FEN'roN.

Copies 0: this patent may be obtained for five cents each, by addressing the Commissioner of Yatents, Washington, D. C. 

